Originally Posted By: JCLover
I found this under Console Messages:
10/11/14 3:27:37 PM [0x0-0xe00e].com.getdropbox.dropbox[135] LSOpenURLsWithRole() failed for the application /System/Library/CoreServices/Finder.app with error -10810 for the file /Users/Daddy/Dropbox.

This is just Dropbox trying to use Finder to locate the dropbox folder. Dropbox isn't having any better luck launching Finder than you are.

Originally Posted By: JCLover
Or alternatively, is there a way to just reinstall Finder?

It's easier to reinstall the whole system than it is to reinstall just one component. Especially when we don't know for certain what needs to be reinstalled. (Or deleted.)

dkmarsh's suggestion to try a safe boot is a good one, and it's easy. Try that, and if it doesn't work I think it's time to go nuclear.

Good luck!